49.3 sec in total
15.2 sec
33.3 sec
808 ms
Click here to check amazing N 451 content. Otherwise, check out these important facts you probably never knew about n451.com
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Visit n451.comWe analyzed N451.com page load time and found that the first response time was 15.2 sec and then it took 34.1 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.
n451.com performance score
name
value
score
weighting
Value7.7 s
0/100
10%
Value10.3 s
0/100
25%
Value17.8 s
0/100
10%
Value520 ms
56/100
30%
Value0.21
59/100
15%
Value13.9 s
10/100
10%
15200 ms
14182 ms
10253 ms
4491 ms
757 ms
Our browser made a total of 64 requests to load all elements on the main page. We found that 94% of them (60 requests) were addressed to the original N451.com, 3% (2 requests) were made to Tcss.qq.com and 2% (1 request) were made to Discuz.gtimg.cn. The less responsive or slowest element that took the longest time to load (15.2 sec) belongs to the original domain N451.com.
Page size can be reduced by 362.1 kB (38%)
958.6 kB
596.6 kB
In fact, the total size of N451.com main page is 958.6 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 20% of websites need less resources to load. Images take 636.8 kB which makes up the majority of the site volume.
Potential reduce by 77.7 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 77.7 kB or 86% of the original size.
Potential reduce by 109.6 kB
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, N 451 needs image optimization as it can save up to 109.6 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 99.5 kB
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 99.5 kB or 73% of the original size.
Potential reduce by 75.3 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. N451.com needs all CSS files to be minified and compressed as it can save up to 75.3 kB or 80% of the original size.
Number of requests can be reduced by 9 (15%)
62
53
The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of N 451. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.
portal.php
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style_2_common.css
14182 ms
common.js
10253 ms
portal.js
4491 ms
ping.js
757 ms
discuz_tips.js
839 ms
bg_body.jpg
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bg_toptb.png
1476 ms
common_37_icon.gif
966 ms
qq_login.gif
436 ms
logo.png
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forum_new.gif
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logo_88_31.gif
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bg_ft_logo.png
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security.png
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style_switch.png
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arrwd.gif
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search_post.png
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nv.png
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nv_a.png
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nv_li.png
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vk_icon_1.png
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vk_icon_2.png
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common_extra.js
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bg_col_vk_title.png
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bg_vk_hot.png
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vk_post_1.png
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vk_rank_big.png
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connect.php
11582 ms
bg_ft.png
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MjkwNDQwMzI=.js
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scrolltop.png
5147 ms
bg_vk_tab_a.png
466 ms
bg_vk_slide_l_btn_202.png
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button_51.gif
600 ms
n451.com accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Image elements do not have [alt] attributes
Links do not have a discernible name
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
n451.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
n451.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
ZH
N/A
GBK
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise N451.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that N451.com main page’s claimed encoding is gbk. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
n451.com
Open Graph description is not detected on the main page of N 451. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: